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    Physics
    Grade-8
    Easy

    Question

    Sound waves are ________ waves.

    1. No
    2. Mechanical
    3. Cylindrical
    4. Spherical

    Hint:

    Sound waves are mechanical waves.

    The correct answer is: Mechanical

      • Sound is a mechanical wave.
      • They need a material medium for propagation.
      • Their speed will be more in solids.

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      In which situation transmission of signal is electrical?

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      2. Never 
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